Mission of Gravity
Hal Clement
Mesklin (1)
Cuckoo's Egg
C. J. Cherryh
Age of Exploration (3)
Pebble in the Sky
Isaac Asimov
Galactic Empire Series (3)
La pista dell'orrore
Roger Zelazny
Urania (492)
Scimitar Sl2
Patrick Robinson
Admiral Arnold Morgan (7)
Equal Rites
Terry Pratchett
Discworld (3)
Eric
Discworld (9)
The Fifth Elephant
Discworld (24)
Going Postal
Discworld (29)
Guards! Guards!
Discworld (8)
Hogfather
Discworld (20)
Thief of Time
Discworld (26)